176 Psyche [December 



account of the way the master began with him, and this has been 

 reprinted many times. As a preparation for the study of insects 

 the master set him at work at fishes. First he had to study a single 

 specimen, day after day, with no other aid than his eyes. Then 

 came the study of related forms and the beginning of a monograph 

 of the group of Serranids, which, however, was never published. 

 This account is still of great value as showing the pedagogic 

 methods of one of the great teachers, described in the most charm- 

 ing manner. 



The study with Agassiz continued, with interruptions, until 

 186'2 when he received the degree of bachelor of science from the 

 Lawrence Scientific School of Harvard. Then followed an appoint- 

 ment as assistant to Agassiz, which continued until 1864. In 1862 

 he also became the secretary of the Boston Society of Natural 

 History, and when he left Agassiz it was to become also the custo- 

 dian of the Boston Societ3^ He continued to hold both offices 

 until 1870. 



From 1870 to 1879, when he became assistant librarian of Har- 

 vard University, he held no official position. In 1882 he was 

 elected president of the Boston Society of Natural History and was 

 annually reelected until 1887, when he refused to hold the office 

 longer. The position in the Harvard library was resigned in 1882. 

 In 1886 he was appointed paleontologist of the U. S. Geological 

 Survey, with especial charge of the work upon fossil insects, the 

 position being held until 1892. After that date he refused all 

 official positions and, until stricken with the disease which, after 

 years of suffering, caused his death, he devoted himself to his 

 insect studies. His library and collections grew too large and too 

 valuable to be longer accommodated in his house. So he built a 

 large and attractive study in the yard, which formed their home as 

 well as the meeting place of the Cambridge Entomological Club, 

 as long as he was able to work. 



Of his entomological work others will write in this number of 

 Psyche. His general publications were comparatively few. 

 Among them are to be enumerated that extremely useful work, the 

 Catalogue of Scientific Serials (1879), that enormous task, the 

 Nomenclator Zoologicus (1884) and an account of an early trip 

 into the Winnipeg Country with one of the eclipse expeditions, 

 which first appeared as by "A. Rochester Fellow" but soon was 



